Insize 4636 Whitworth Taper Pipe Thread Ring Gauges

Insize 4636 Whitworth Taper Pipe Thread Ring Gauges

The Insize 4636 Whitworth Taper Pipe Thread Ring Gauge series is a British Standard Pipe Taper (BSPT) thread ring gauge line used to verify external taper pipe threads on fittings, valves, and connectors that rely on the Whitworth thread form for a pressure-tight seal. Manufactured to the BS 21-1985 standard, each ring gauge is sized to a specific pipe thread designation, from 1/8-28 up through larger sizes such as 2-1/2-11 and beyond, giving inspectors and machinists a reliable way to confirm that external taper threads meet the correct pitch diameter and taper angle. This makes the 4636 series a practical choice for plumbing fitting manufacturers, valve makers, and machine shops working with British pipe thread standards, particularly in industries and regions where BSPT threads remain the standard for pressure-tight pipe connections.

Key Features

• Verifies external taper pipe threads against the Whitworth (BSPT) thread form
• Manufactured to BS 21-1985 standard for accurate, traceable results
• Available in a wide range of pipe thread sizes, from 1/8-28 up through larger BSPT designations
• Precision-ground thread profile ensures accurate Go/No-Go inspection
• Durable steel construction built for repeated shop and inspection use
• Well suited for pipe fitting, valve, and connector manufacturing applications

Specifications

Items Included

• Insize 4636 Whitworth taper pipe thread ring gauge in the selected size
• Fitted storage case
• Instruction manual

Insize 4636 Whitworth Taper Pipe Thread Ring Gauges Data Sheet